/*
 * TipTip
 * Copyright 2010 Drew Wilson
 * www.drewwilson.com
 * code.drewwilson.com/entry/tiptip-jquery-plugin
 *
 * Version 1.3   -   Updated: Mar. 23, 2010
 *
 * This Plug-In will create a custom tooltip to replace the default
 * browser tooltip. It is extremely lightweight and very smart in
 * that it detects the edges of the browser window and will make sure
 * the tooltip stays within the current window size. As a result the
 * tooltip will adjust itself to be displayed above, below, to the left 
 * or to the right depending on what is necessary to stay within the
 * browser window. It is completely customizable as well via CSS.
 *
 * This TipTip jQuery plug-in is dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */

(function($){
    $.fn.tipTip = function(options) {
        var defaults = {
            activation: "hover",
            keepAlive: false,
            maxWidth: "200px",
            edgeOffset: 3,
            defaultPosition: "bottom",
            delay: 400,
            fadeIn: 200,
            fadeOut: 200,
            attribute: "title",
            content: false, // HTML or String to fill TipTIp with
            enter: function(){},
            exit: function(){}
        };
        var opts = $.extend(defaults, options);

        // Setup tip tip elements and render them to the DOM
        if($("#tiptip_holder").length <= 0){
            var tiptip_holder = $('<div id="tiptip_holder" style="max-width:'+ opts.maxWidth +';"></div>');
            var tiptip_content = $('<div id="tiptip_content"></div>');
            var tiptip_arrow = $('<div id="tiptip_arrow"></div>');
            $("body").append(tiptip_holder.html(tiptip_content).prepend(tiptip_arrow.html('<div id="tiptip_arrow_inner"></div>')));
        } else {
            var tiptip_holder = $("#tiptip_holder");
            var tiptip_content = $("#tiptip_content");
            var tiptip_arrow = $("#tiptip_arrow");
        }

        return this.each(function(){
            var org_elem = $(this);
            if(opts.content){
                var org_title = opts.content;
            } else {
                var org_title = org_elem.attr(opts.attribute);
            }
            if(org_title != ""){
                if(!opts.content){
                    org_elem.removeAttr(opts.attribute); //remove original Attribute
                }
                var timeout = false;

                if(opts.activation == "hover"){
                    org_elem.hover(function(){
                        active_tiptip();
                    }, function(){
                        if(!opts.keepAlive){
                            deactive_tiptip();
                        }
                    });
                    if(opts.keepAlive){
                        tiptip_holder.hover(function(){}, function(){
                            deactive_tiptip();
                        });
                    }
                } else if(opts.activation == "focus"){
                    org_elem.focus(function(){
                        active_tiptip();
                    }).blur(function(){
                            deactive_tiptip();
                        });
                } else if(opts.activation == "click"){
                    org_elem.click(function(){
                        active_tiptip();
                        return false;
                    }).hover(function(){},function(){
                            if(!opts.keepAlive){
                                deactive_tiptip();
                            }
                        });
                    if(opts.keepAlive){
                        tiptip_holder.hover(function(){}, function(){
                            deactive_tiptip();
                        });
                    }
                }

                function active_tiptip(){
                    opts.enter.call(this);
                    tiptip_content.html(org_title);
                    tiptip_holder.hide().removeAttr("class").css("margin","0");
                    tiptip_arrow.removeAttr("style");

                    var top = parseInt(org_elem.offset()['top']);
                    var left = parseInt(org_elem.offset()['left']);
                    var org_width = parseInt(org_elem.outerWidth());
                    var org_height = parseInt(org_elem.outerHeight());
                    var tip_w = tiptip_holder.outerWidth();
                    var tip_h = tiptip_holder.outerHeight();
                    var w_compare = Math.round((org_width - tip_w) / 2);
                    var h_compare = Math.round((org_height - tip_h) / 2);
                    var marg_left = Math.round(left + w_compare);
                    var marg_top = Math.round(top + org_height + opts.edgeOffset);
                    var t_class = "";
                    var arrow_top = "";
                    var arrow_left = Math.round(tip_w - 12) / 2;

                    if(opts.defaultPosition == "bottom"){
                        t_class = "_bottom";
                    } else if(opts.defaultPosition == "top"){
                        t_class = "_top";
                    } else if(opts.defaultPosition == "left"){
                        t_class = "_left";
                    } else if(opts.defaultPosition == "right"){
                        t_class = "_right";
                    }

                    var right_compare = (w_compare + left) < parseInt($(window).scrollLeft());
                    var left_compare = (tip_w + left) > parseInt($(window).width());

                    if((right_compare && w_compare < 0) || (t_class == "_right" && !left_compare) || (t_class == "_left" && left < (tip_w + opts.edgeOffset + 5))){
                        t_class = "_right";
                        arrow_top = Math.round(tip_h - 13) / 2;
                        arrow_left = -12;
                        marg_left = Math.round(left + org_width + opts.edgeOffset);
                        marg_top = Math.round(top + h_compare);
                    } else if((left_compare && w_compare < 0) || (t_class == "_left" && !right_compare)){
                        t_class = "_left";
                        arrow_top = Math.round(tip_h - 13) / 2;
                        arrow_left =  Math.round(tip_w);
                        marg_left = Math.round(left - (tip_w + opts.edgeOffset + 5));
                        marg_top = Math.round(top + h_compare);
                    }

                    var top_compare = (top + org_height + opts.edgeOffset + tip_h + 8) > parseInt($(window).height() + $(window).scrollTop());
                    var bottom_compare = ((top + org_height) - (opts.edgeOffset + tip_h + 8)) < 0;

                    if(top_compare || (t_class == "_bottom" && top_compare) || (t_class == "_top" && !bottom_compare)){
                        if(t_class == "_top" || t_class == "_bottom"){
                            t_class = "_top";
                        } else {
                            t_class = t_class+"_top";
                        }
                        arrow_top = tip_h;
                        marg_top = Math.round(top - (tip_h + 5 + opts.edgeOffset));
                    } else if(bottom_compare | (t_class == "_top" && bottom_compare) || (t_class == "_bottom" && !top_compare)){
                        if(t_class == "_top" || t_class == "_bottom"){
                            t_class = "_bottom";
                        } else {
                            t_class = t_class+"_bottom";
                        }
                        arrow_top = -12;
                        marg_top = Math.round(top + org_height + opts.edgeOffset);
                    }

                    if(t_class == "_right_top" || t_class == "_left_top"){
                        marg_top = marg_top + 5;
                    } else if(t_class == "_right_bottom" || t_class == "_left_bottom"){
                        marg_top = marg_top - 5;
                    }
                    if(t_class == "_left_top" || t_class == "_left_bottom"){
                        marg_left = marg_left + 5;
                    }
                    tiptip_arrow.css({"margin-left": arrow_left+"px", "margin-top": arrow_top+"px"});
                    tiptip_holder.css({"margin-left": marg_left+"px", "margin-top": marg_top+"px"}).attr("class","tip"+t_class);

                    if (timeout){ clearTimeout(timeout); }
                    timeout = setTimeout(function(){ tiptip_holder.stop(true,true).fadeIn(opts.fadeIn); }, opts.delay);
                }

                function deactive_tiptip(){
                    opts.exit.call(this);
                    if (timeout){ clearTimeout(timeout); }
                    tiptip_holder.fadeOut(opts.fadeOut);
                }
            }
        });
    }
})(jQuery);  	